sounds like a good idea for sure. i am wondering if it might hender me as i have problems with harsh cold air i lost 25% of my lung capacity due to agent orange and smoking but 12 years later after i had quit smoking it stayed the same but in extreme cold i have to be careful as really cold air though i am ore comfortable in it the breathing gets the hammer and i would like to find soemthign that is comfortable and keeps you i warm air maybe this will do the trick
rob k